What a freaking joke! The Spanish is good for Black and the Italian good for White? Nobody would play 1...e5/2...Nc6 if it was good for White. All "normal" openings are a very slight edge for White and no more!
You play what you know. I had a rated game tonight at the club (over the board). I was Black, it was a Petroff, and I won. Just because the Petroff works for me doesn't mean it works for everybody. There is no "best". There are merely a FINITE number of sound responses to 1.e4, 1.d4, 1.c4, etc.
What do you guys think the best openings as black are? I think Sicillian and Caro-Kann are nice, I think the Spanish Opening kind of gives black some oppurtunities to fight back, but Italian is kind of good for white.